uxcell 2 Pcs Dustproof Dust Filter Guard Grill Cover for 80mm PC Case Fan

Washable? You will never be able to obtain them. I ordered them a year ago, and they accepted my payment without issue. When Amazon asked for a review, I waited and waited before telling them I had never received them. I contacted Amazon a few more times since then, but have received no response. I did inquire as to the nature of the issue with my delivery service. Smaller items like this, they told me, are mailed in standard envelopes and are destroyed in transit. For the past 40 years, I've worked as a professional solderer and welder. Because no one knew about the dangers back then, I have respiratory issues and a high level of heavy metal poisoning. I built a two-fan system to safely teach my son how to work with electronics (which has yet to be used). They cannot be washed, in response to your question. Activated charcoal is made by burning acid into very small veins in the charcoal to allow it to collect dust; however, washing will destroy these veins, rendering them useless. They can only be vacuumed out if there is a lot of dust. They'll collect dust and fumes for years. When it comes to your health, don't fudge the numbers. Hopefully, Amazon will see this and look into how many orders I placed with them prior to and after this incident. I do have a long list of filters I'd like to get my hands on, and it's getting pretty long.